Large-flowered Pea-bush Plant Care

Large-flowered Pea-bush (Sphaerolobium macranthum) belongs to the Fabaceae family within the Sphaerolobium genus. Large-flowered Pea-bush is native to the south-west of Western Australia.

Large-flowered Pea-bush displays a low spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 2 ft. Large-flowered Pea-bush produces small yellow pea-like flowers in clusters.

Leaf size: approximately 1.5 inches.

Water a young or newly planted Large-flowered Pea-bush every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Large-flowered Pea-bush thrives in full sun to partial shade.

Sphaerolobium macranthum tolerates temperatures of 50–85°F. Large-flowered Pea-bush prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Large-flowered Pea-bush to prevent waterlogging, which leads to root rot and fungal issues.

Feed Large-flowered Pea-bush every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter. Avoid low spots where water collects after rain.

Large-flowered Pea-bush is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

Large-flowered Pea-bush can spread to about 2 ft (0.6 m) and reach about 1 ft (0 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

Prune Large-flowered Pea-bush while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

Large-flowered Pea-bush is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Large-flowered Pea-bush can be propagated through seeds, division of root ball. Similar propagation techniques also apply to sphaerolobium acanthos plant care, which shares the same genus.

See all plants toxic to cats and plants toxic to dogs.

Large-flowered Pea-bush is susceptible to aphids, leafhoppers, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Large-flowered Pea-bush grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Large-flowered Pea-bush is native to the south-west of Western Australia. In cooler regions, grow Large-flowered Pea-bush as a houseplant or bring it indoors before the first frost.